Pigments of the quinacridonequinone series, process for their preparation and their use

Pigments of the quinacridonequinone series comprising 99-30 mole percent of a quinacridonequinone of the formula (1) in which R denotes a hydrogen or chlorine atom or a methyl group, 0-60 mole percent of a quinacridone of the formula (2) (2) in which R has the above-mentioned meaning, and 1-10 mole...

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Hauptverfasser: PROKSCHY, FRANK, SPIETSCHKA, ERNST
Format: Patent
Sprache:eng
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Zusammenfassung:Pigments of the quinacridonequinone series comprising 99-30 mole percent of a quinacridonequinone of the formula (1) in which R denotes a hydrogen or chlorine atom or a methyl group, 0-60 mole percent of a quinacridone of the formula (2) (2) in which R has the above-mentioned meaning, and 1-10 mole percent of a 7,15-dihydro-pyrido-(2,1-b)-(1',2'; 1,2)-pyrimido-(4,5-g)-quinazoline-7,15-dione of the formula (3) (3) in which R has the above-mentioned meaning, the added compounds of the formulae (2) and (3) being present in the crystal lattice of the quinacridonequinone of the formula (1), process for their preparation and their use for coloring plastic materials and for preparing automotive paints for metallic coatings.